RADICAL MEN strengthening shampoo against hair loss for men. Radical® - radically strengthens hairstrengthening shampoo against hair loss with triple strength, recommended for weak and falling hair. Radical® is a real breakthrough in hair care and in the fight against hair loss. It guarantees triple power of action: supports growth, visibly strengthens it and reduces hair loss, effectively strengthens hair, adds volume, reduces hair loss and supports hair growth.